I know what to expect怎么变被动句?

I know what to expect怎么变被动句?
I know what to expect怎么变被动句?

I know what to expect怎么变被动句?
被动句应该是：what to expect is known(by me).
因为原句I know what to expect 的主语是I,谓语是know,宾语是从句what to expect .因此被动句应该让原句的宾语部分做主语,原句的谓语动词变为相应的分词